Unity3D转UE4指南

坐标：

Unity3D

• X - left, right
• Y - up, down
• Z - forwards, backwards

Unreal Engine4

• X - forwards, backwards
• Y - left, right
• Z - up, down

UE4 also referrers to the pivots of a rotation as: Pitch, Roll, and Yaw.

游戏对象

Unity3D：GameObject

UE4：Actor

场景与关卡：

Unity3D：Scenes

UE4：(.umap)

基本数据类型：

Unity3D Unreal Engine4

Unity3D	Unreal Engine4
int	int32, int24, int8
string	FString
Transform	FTransform
Quaternion	FQuat
Rotation	FRotator
Gameobject	Actor
Array	TArray

Instantiate and Spawning

Unity3D

Instantiate()

Unreal Engine4

UWorld->SpawnActor()

UWorld::SpawnActor() may only be used for creating instances of classes which inherit from the Actor class in their hierarchy.

成员函数和数据

Unity3D	Unreal Engine4
Update()	Tick()
transform	GetActorTranform(), GetFocalLocation()
transform.position	GetActorTranform().GetLocation()
transform.roation	GetActorTranform().GetRotation()
transform.localScale	GetActorTranform().GetScaled3D()
Destroy()	Destroy()
Find()	TObjectIterator<T>(), FActorIterator<T>
MathF	FMath
RayCast	Trace
SphereCast	Sweep